The paper describes the application of Siemens S7 PLC in Ekou pelletizing project and the example of constructing a network using Siemens automatized networking equipment.
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有一年,失败方曾设法把球投到一口井里来拖延时间。
One year, the losing side managed to drop the ball in a well to bide time.
"No one wants to carry the ball 99 yards all the way to the one-yard line, and then give it to the halfback who gets all the credit," one state senator complained to a local journalist.